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Internal Communication Systems in Living Organisms

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Internal Communication Systems in Living Organisms

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Questions and Answers

What is the main function of the Nervous System in the body?

Regulation of the endocrine system

Coordination of various body systems (correct)

Memory storage and reasoning abilities

Control of voluntary body activities only

How does the Nervous System differ from the Endocrine System in terms of response speed?

Endocrine System responds rapidly

Endocrine and Nervous Systems have similar response times

Nervous System responds slowly

Nervous System responds rapidly (correct)

What is the role of the Endocrine System in the body?

Reacting to external stimuli

Coordination of organs and tissues

Control of voluntary actions

Regulation of internal environment (correct)

How do cells and organs in the body work according to the text?

Coordinated for various functions at specific times Signup and view all the answers

What is the primary means by which outside stimuli are perceived by the body?

Nervous system Signup and view all the answers

Which statement accurately describes neurology based on the text?

Study of nervous system and receptor organs Signup and view all the answers

Which region of a neuron is highly specialized to conduct nerve impulses away from the cell body?

Axon Signup and view all the answers

What is the function of myelin sheath around an axon?

Increases the speed of nerve impulse conduction Signup and view all the answers

Which cell organelle is absent in nerve cells?

Centrosome Signup and view all the answers

What is the role of dendrites in a neuron?

Highly branched to receive nerve impulses and conduct them towards the cell body Signup and view all the answers

Which type of neuron transmits impulses from receptors to the brain and spinal cord?

Sensory (Afferent) neurons Signup and view all the answers

What differentiates a unipolar neuron from other types of neurons?

Fiber immediately divides into proximal and distal fibers with no dendrites Signup and view all the answers